# Physics :)

posted by .

A block of iron at 39.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperature?

The specific heat of iron is 449 (J/kg*K)

Someone else had this question on here but I cannot get the right answer from the explanation given. Can someone please work this out and show me what my answer should be so I don't get my calculations all jumbled anymore?! Thank you :)

• Physics :) -

Q= m•c•ΔT
ΔT = Q/m•c=3.5•10^4/2.3•449=33.9º
T2=T1+ΔT= 39+33.9=72.9ºC=345.9 K

## Similar Questions

1. ### Physics

A solid iron cylinder of mass 0.2 kg is quickly transferred from inside boiling water in a beaker at 100 C into 90g of water at 15 C contained in a calorimeter of mass 150g and specific heat capacity equal to 800 J/kg/K. Find the final …
2. ### intro chem HELp please

1. Zinc is often used to calibrate calorimeters because it undergoes a very sharp phase transition from the solid to the liquid at 419.5oC. Calculate the enthalpy change when 5 g of zinc metal is heated from 100oC to the point where …
3. ### Chemistry

Calculate the final temperature when 20.0 g at 60 *C iron is put into 50.0 ml of 20 *C water. The specific heat of iron is 0.449 J/g*C and that of water is 4.184*C. (Assume no heat is lost to the container or the surrounndings.)
4. ### Chemistry

Hydrogen is burned in oxygen to release heat. How many grams of hydrogen gas must be burned to release enough heat to warm a 50.0 g block of iron, giving 5 mol of water?
5. ### chemistry

a 2kg block of iron is given 10kj of energy and its temperature rises by 10c. what is the specific heat capacity of iron?
6. ### Physics

A block of iron at 39.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperature?
7. ### science

Two blocks of different temperatures are brought together. Block A is a 360.0-kg block is made of Material X which has a temperature-dependent specific heat. Its initial temperature is TA = 200.0¡ã C. Block B is a 1000.0-kg iron …
8. ### physics

A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 1.8 kg, and its initial speed is 3.8 m/s. How much does the block's temperature increase, if it absorbs 69% of its initial …
9. ### Chemistry

3490 J of heat are added to a 20.4 g sample of iron at 20◦C. What is the final temperature of the iron?
10. ### Physics

A 0.300 kg iron horseshoe that is initially at 550°C is dropped into a bucket containing 19.4 kg of water at 21.1°C. What is the final equilibrium temperature (in °C)?

More Similar Questions