Chemistry

CT ASSIGNMENT 4 2

Thermochemistry

How much energy, in J, is needed to raise the temperature of g of Cu (specific heat 0.382 J/g ºC) from 25ºC to ºC?

A coffee-cup calorimeter contains g of water at ºC. If 3.00 g Au at 15.20ºC is placed in the calorimeter, what is the final temperature of the water in the calorimeter? The specific heat of water is 4.184 J/g·ºC; the specific heat of gold is 0.128 J/g·ºC.

Copper has a specific heat of 0.382 J/g·ºC. If 2.51 g of copper absorbs J of heat, what is the change in temperature?

Aluminum has a specific heat of 0.902 J/g·ºC. How many joules of heat are required to change the temperature of 8.50 grams of aluminum from 25.0ºC to ºC?