I need help please.
Mercury is a metal that is liquid at room temperature. Its melting point of -39 degrees Celsius. The melting point of isopropyl alcohol is -89 Celsius.
(Part A) In the context of this problem, what does zero mean ?
(I think it just tells if the liquid will be solid or liquid )
(Part B) which of the temperature is colder -39 Celsius or negative 89 Celsius? Write an inequality statement.
( think its: -39 < -89)
(Part c) how much colder is a lower melting point?
(-59 is melting point)
Zero just gives you an arbitrary point on the number line to measure the other two points from. The fact that it happens to be the melting point of ice is irrelevant to this problem.
-89 is colder than -39
-89 is LEFT of -39 on our number line
-89 < -39
how much colder is and absolute value
-39 - (-89) = 50 degrees colder
Part A: In the context of this problem, the value zero does not have a specific meaning. It is not explicitly mentioned in the information you provided. However, in general, zero can represent a reference point or a threshold. For example, when talking about temperature, zero degrees Celsius is the freezing point of pure water.
Part B: To determine which temperature is colder, we can compare the numerical values. In this case, -39 degrees Celsius is a higher value than -89 degrees Celsius. Therefore, -89 degrees Celsius is colder than -39 degrees Celsius. The correct inequality statement would be: -39 > -89, meaning that -39 is greater than -89.
Part C: To calculate how much colder a lower melting point is, we need to subtract the lower temperature from the higher temperature. In this case, the melting point of isopropyl alcohol (-89 degrees Celsius) is lower than the melting point of mercury (-39 degrees Celsius). So, the calculation would be: -39 - (-89) = -39 + 89 = 50 degrees Celsius. Therefore, the lower melting point is 50 degrees Celsius colder than the higher melting point.