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Homework: Worksheets 1st Law of Thermo and Heat Efficiency + Prep for Lab - How is your Gas mileage? Next Class: Lab - How's my gas Mileage? Quiz - Transforming Energy - 1a , 1b , 1c
ANSWER KEY HEAT Practice Problems Q = m x ∆T x C 1. 5.0 g of copper was heated from 20°C to 80°C. How much energy was used to heat Cu? (Specific heat capacity of Cu is 0.092 cal/g °C) 27.6 cal 2. How much heat is absorbed by 20g granite boulder as energy from the sun causes its temperature to change from 10°C to 29°C? (Specific heat capacity
Answers Q = mc∆T, where Q = heat energy, m = mass, and ∆T = change in temp. Remember, ∆T = (T final – T initial). Show all work and proper units. 1. A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.
Student Lab Sheet Answer Key . Name_____ Date: _____ Are HEAT and TEMPERATURE the same thing? YES NO Heat and Temperature are not the same thing. They have different units. Heat is energy that spontaneously passes between a system and its surroundings in some way
Heat Practice Problems With Detailed Answers. Struggling with heat problems in your physics class? Our article is here to help! Packed with solved examples specifically designed for high school students, this guide will make mastering heat problems easy. Get ready to boost your grades and deepen your understanding with these easy-to-follow ...
What is the final temperature of the mixture? 2. What volume of antifreeze is necessary to cool a hot engine from 200 ̊C to 150 ̊C? Assume the engine is made of steel with a specific heat of 0.45 kJ/kg ̊C and has a mass of 300 kg. The antifreeze is 50% water/50% ethylene glycol with a specific heat of 3.33 kJ/kg ̊C and a density of 1,050 kg/m3.
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