Answer to Question #52984 in Molecular Physics | Thermodynamics for hannah

Question

1.200g of water heated from 17.0 degrees Celsius to 23.5 degrees Celsius . What is the amount of thermal energy that been transferred to that mass?

2. beaker contains 360.4g of whiten the liquid state at 100 degrees Celsius . How much energy in KJ is required to convert the liquid water to water vapours?

3. what is the amount of heat energy required to change a 40.0g ice cube at -20.0 degrees Celsius to water at 50.0 degrees Celsius ?

4.500g mass of copper at 15.0 degrees Celsius, copper gains 650 joules of thermal energy. What would be final temperature of that mass? ( c=0.386 j/g degrees Celsius)