1. Which of the following is not true

a. Evaporation occurs at any temprature of a liquid
b. Boiling takes place only at the surface of the liquid
c. Evaporation occursonly at the surface of a liquid
d. Boiling of a liquid takes place at a definite temprature and pressure
2. Which of the following does not determine the amount of internal energy an object as?
a. Temprature
b. Amount of material
c. Type of material
d. Shape of the object
3. Thermal expansion of a solid material depends on the following exept
a. The nature of the material making all up the solid
b. The range of the temprature change
c. The initial dimension of the solid
d. Average translational motion of constituent atoms of the materials
4. The statement "Heat lost by hot object is equal to heat gain by code object" another way of expressing the law of conservation of
a. Charge
b. Angular momentum
c. Energy
d. Momentum
5. The absolute zero temprature refers to the temprature at which
a. Pure ice, Water and water vapour at normal atmospheric pressure are in equilibrim
b. Theoretically all thermal motion will cease
c. Pure ice melt at normal atmospheric pressure
d. Pure ice ecomes steam at atmospheric pressure
6. Tin melt at 232 under standard atmospheric pressure. Express this temprature in kelvin
a. 449.16k
b. 505.15k
c. 60.91k
d. 96.19k

What will be the answer of the 1st question?

1. To determine which statement is not true, we can examine each option and determine if it aligns with the principles of evaporation and boiling:

a. Evaporation occurs at any temperature of a liquid: This statement is true. Evaporation can occur at any temperature, although the rate of evaporation increases with higher temperatures.

b. Boiling takes place only at the surface of the liquid: This statement is not true. Boiling occurs throughout the entire liquid and is characterized by the formation of bubbles.

c. Evaporation occurs only at the surface of a liquid: This statement is true. Evaporation specifically refers to the process of molecules escaping from the surface of a liquid.

d. Boiling of a liquid takes place at a definite temperature and pressure: This statement is true. Boiling occurs when the vapor pressure of the liquid is equal to the atmospheric pressure, resulting in a specific temperature known as the boiling point.

Therefore, the statement that is not true is: b. Boiling takes place only at the surface of the liquid.

2. To determine which factor does not determine the amount of internal energy an object has, we can assess each option:

a. Temperature: The temperature of an object directly affects its internal energy. As the temperature increases, the internal energy of the object also increases.

b. Amount of material: The amount of material in an object does affect its internal energy. More material typically means a greater internal energy.

c. Type of material: The type of material does affect the internal energy. Different materials have different internal energy capacities.

d. Shape of the object: The shape of an object does not directly determine its internal energy. The internal energy is primarily determined by the temperature, amount, and type of material.

Therefore, the factor that does not determine the amount of internal energy an object has is: d. Shape of the object.

3. To identify the factor that does not affect the thermal expansion of a solid material, we can analyze each option:

a. The nature of the material making up the solid: The nature of the material does affect the thermal expansion. Different materials have different coefficients of thermal expansion.

b. The range of the temperature change: The range of the temperature change does influence the thermal expansion. Higher temperature changes generally result in greater expansion.

c. The initial dimension of the solid: The initial dimension of the solid plays a role in the thermal expansion. Different dimensions may expand differently.

d. Average translational motion of constituent atoms of the material: The average translational motion of the constituent atoms affects the thermal expansion. Higher motion generally leads to greater expansion.

Therefore, the factor that does not affect the thermal expansion of a solid material is: d. Average translational motion of constituent atoms of the materials.

4. The statement "Heat lost by a hot object is equal to heat gained by a cold object" is another way of expressing the law of conservation of:

a. Charge: This statement does not pertain to the conservation of charge. Charge conservation refers to the principle that charge cannot be created or destroyed, only transferred.

b. Angular momentum: This statement also does not pertain to the conservation of angular momentum. Angular momentum conservation refers to the principle that the total angular momentum of a system remains constant unless acted upon by external torques.

c. Energy: This statement aligns with the law of conservation of energy. Conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

d. Momentum: This statement does not relate to the conservation of momentum. Momentum conservation refers to the principle that the total momentum of an isolated system remains constant unless acted upon by external forces.

Therefore, the statement "Heat lost by a hot object is equal to heat gained by a cold object" is another way of expressing the law of conservation of: c. Energy.

5. The absolute zero temperature refers to the temperature at which:

a. Pure ice, water, and water vapor at normal atmospheric pressure are in equilibrium: This statement does not describe the concept of absolute zero, which is unrelated to the state of equilibrium between ice, water, and water vapor.

b. Theoretically, all thermal motion will cease: This statement accurately describes the concept of absolute zero. At this temperature, particles have minimal thermal energy, and their motion nearly ceases.

c. Pure ice melts at normal atmospheric pressure: This statement does not relate to absolute zero. The melting of pure ice occurs at a temperature above absolute zero.

d. Pure ice becomes steam at atmospheric pressure: This statement does not relate to absolute zero either. The conversion of ice to steam occurs at temperatures above absolute zero.

Therefore, the statement that correctly describes the concept of absolute zero is: b. Theoretically, all thermal motion will cease.

6. To convert the melting temperature of tin from Celsius to Kelvin, we can use the formula:

Kelvin = Celsius + 273.15

The melting temperature of tin is given as 232°C. Using the formula, we can calculate:

Kelvin = 232 + 273.15 = 505.15 K

Therefore, the temperature of tin's melting point in Kelvin is: b. 505.15 K.