Q1a:Two objects are brought into contact. Object #1 has mass 1.16 kg, specific heat capacity 0.84 Jg^-1C^-1 and initial temperature 50.8 °C. Object # 2 has mass 90.7 g. specific heat capacity 4.02 J g^-1 °C^-1 and initial temperature 16.7 °C. What is the final temperature of the two masses after thermal equilibrium has been reached? Assume the two objects are thermally isolated from everything else. Express your answer in °C.
Q1a:Two objects are brought into contact.
Object #1 has mass 1.16 kg, specific heat capacity 0.84 Jg^-1C^-1 and initial temperature 50.8 °C. Object # 2 has mass 90.7 g. specific heat capacity 4.02 J g^-1 °C^-1 and initial temperature 16.7 °C.
What is the final temperature of the two masses after thermal equilibrium has been reached? Assume the two objects are thermally isolated from everything else. Express your answer in °C.
Q1b: What is the specific heat capacity of a substance of mass 148 g that increases in temperature from 20.7 °C to 25.4 °C after absorbing 2.41 kJ of energy in the form of heat? Express your answer in J g^-1°C^-1. Do not try to identify the substance.
Q1c: Calculate the work associated with a system when its volume is expanded from 55 L to 86.6 L against a constant
pressure of 1.02 bar.
Express your final answer in J.
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