URGENT!!!!! I WILL MARK U AS BRAINLIEST!!!!!!! A step-down transformer converts 120 V to 5 V in a phone charger. If the primary
1 answer:
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Answer:
a)
b)
Explanation:
Given:
- mass of copper,
- initial temperature of copper,
- specific heat capacity of copper,
- mass of water,
- initial temperature of water,
- specific heat capacity of water,
a)
<u>∵No heat is lost in the environment and the heat is transferred only between the two bodies:</u>
Heat rejected by the copper = heat absorbed by the water
b)
<u>Now the amount of heat transfer:</u>
∴Entropy change