University:
University of Colorado Boulder
Course:
PHYS 2010 | General Physics 1
Academic year:

2022
Views:

447

Pages:

1
Author:

Bryanna Diaz

Date: Name: Charles’ Law Charles’ law shows a direct relationship between the volume of a gas and the temperature of a gas when the ' temperature is given in the Kelvin scale . The Charles law equation is below. CHARLES* LAW Initial volume ( in-') Initial temperature ( K ) —— J11 —— TV —— j 3 « ( ) 2* **** volume xn • 24 ^ ^ temperature ( K ) Pressure and mas* constant w you add 273 to the Celsius temperature. To convert from Converting from degrees Celsius to Kelvin is easy Kelvins to degrees Celsius, you subtract 273 from the Kelvin temperature . EXAMPLE A truck tire holds 25.0 liters of air at 25°C. If the temperature drops to 0°C, and the pressure remains constant, what will be the new volume of the tire? Solution Looking for The new volume of the tire ( V2) Given yx “ 25.0 liters; 7 - 25°C; 72 = 0°C Relationships Use Charles’ Law to solve for V 2 . Multiply each side by T 2 to isolate V 2 on one side of the equation. y l T2 , 7 , •S 7 - T 2 = 0°C + 273 = 273 vi " " ^ _g . r Y 0L > PRACTICE 1. If a truck tire holds 25.0 liters increases to 30.0°C? = 23.0 L . - 201 . \L. air at 25.0°C, what will be the volume of air in the tire if the temperature . K 50.0 C and the pre 323 A balloon holds 20.0 liters of helium at 10.0°C. If the temperature increases to not change, what will be the new volume of the balloon ? 3. Use Charles’ Law to fill in the following table with the correct values. Pay attention to the temperature units. . Io ) L i250 b. . c v, 298 2. a. (X , ^ of 2 6 25.0 L x 273 The new volume inside the tire is 23.0 liters. I Convert temperature values in Celsius degrees to Kelvin. Tfcehtn Celsius * 73 ^ 25°C + 273 = 298 . ^ 10 L - i DIO < - yc 141 */ b . l o. or l« IO0 n*L ,= It070 L 840 K M L 15 L WO £ . b S . 760 l 14-fc K V * - vV ' 1.4 1400 147 K £°°c 320_ rc C. k- ^U or ) ° , T , L |6 L 130 K X [ * 300 K-