(c) The temperature of 200 g of water decreases from 20 °C to 0 °C in 10 minutes. Calculate i. the heat lost by the water. ii. the rate at which the water is losing heat. iii. the time taken for the water at 0°C to turn completely into ice.

(c) The temperature of 200 g of water decreases from 20 °C to 0 °C in 10 minutes. Calculate i. the heat lost by the water. ii. the rate at which the water is losing heat. iii. the time taken for the water at 0°C to turn completely into ice.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter14: Heat And Heat Transfer Methods

Section: Chapter Questions

Problem 25PE: If you pour 0.0100 kg of 20.0C water onto a 1.20kg block of ice (which is initially at 15.0C ), what...

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Question

The temperature of 200 g of water decreases from 20 °C to 0 °C in 10 minutes. Calculate
i. the heat lost by the water.
(c)
ii. the rate at which the water is losing heat.
iii. the time taken for the water at 0 °C to turn completely into ice.
(d)
A 20 kg brick stands upright on the ground as shown. What is the pressure it exerts on the
ground?
20 cm
5 cm
10 cm

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