Will give brainliest 1. an amount of heat equal to 10.5 x 105 j is supplied to 5 kg of water to raise its temperature from 25°c to 75°c. what is the specific heat capacity of water? 4.2 j/kg.°c 4200 j/kg.°c 1000 j/kg.°c 4200 kcal/kg.°c 2. what is the heat required in kilocalories to convert 2 kg of ice at 0°c completely into steam at 100°c? 80 calories 1440 calories 4186 calories 540 calories 3. how many kg of ice needs to be added to 1.31 kg of water at 64.9°c to cool the water to 14.9°c when the latent heat of ice = 80 kcal/kg? 0.69 6.9 690 6900 4. 540 g of ice at 0°c is mixed with 540 g of water at 80°c. what is the final temperature of the mixture? 0°c 40°c 80°c less than 0°c 5. if ∆q is the heat supplied to a gas so that the internal energy of the system increases by ∆u, then the work done ∆w by the gas is equal to: ∆q – ∆u ∆q + ∆u ∆q x ∆u ∆u/∆q 6. the internal energy of the gas in a gasoline engine cylinder decreases by 210 j. if 60 j of work is done by the gas, the energy transferred as heat is: 270 j 150 j -150 j -270 j 7. a gaseous refrigerant undergoes compression over 160 j of work done on it. if the internal energy of the gas increases by 130 j, the amount of heat transfer is: 290 j -290 j 30 j -30 j