2. A 230 ml ethyl alcohol was placed in a Pyrex glass and makes it full at 22°C. How much alcohol will overflow if the temperature rises to 100°C?
2. A 230 ml ethyl alcohol was placed in a Pyrex glass and makes it full at 22°C. How much alcohol will overflow if the temperature rises to 100°C?
Chapter5: Temperature And Heat
Section: Chapter Questions
Problem 4C: As air rises in the atmosphere, its temperature drops, even if no heat flows out of it. (a) Based on...
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Transcribed Image Text:I. Problem Solving: Read each problem carefully, show your
solution and box your final answer. Create a simple
illustration to show the problem.
1. A 7-meter-long steel pipe was installed by a man during a cold
whether at 20°C. What would be the length of the steel pipe if the
temperature rises to 30°C? Use a = 11 x 10-6/°C.
2. A 230 ml ethyl alcohol was placed in a Pyrex glass and makes
it full at 22°C. How much alcohol will overflow if the temperature
rises to 100°C?
3. How much heat is required to rise the temperature of 0.5 kg
water from 30°C to its boiling point? The specific heat of water is
4,186 J/kg.K.
4. What is the rate of heat transfer by radiation, with an unciothed
person standing in a dark room whose ambient temperature is
24°C? The person has a normal skin temperature of 32°C and a
surface area of 1.60 m?. The emissivity of skin is 0.95 in the
infrared, where the radiation takes place.
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