problem18_61

# University Physics with Modern Physics with Mastering Physics (11th Edition)

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18.61: a) The absolute pressure of the gas in a cylinder is Pa ) 10 013 . 1 10 20 . 1 ( 5 6 × + × Pa. 10 30 . 1 6 × = At atmospheric pressure, the volume of hydrogen will increase by a factor of , 10 01 . 1 10 30 . 1 5 6 × × so the number of cylinders is . 31 )) 10 01 . 1 ( ) 10 30 . 1 )(( m 90 . 1 ( m 750 5 6 3 3 = × × b) The difference between the weight of the air displaced and the weight of the hydrogen is Vg RT pM ρ Vg ρ ρ
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Unformatted text preview: -=-2 2 H air H air ) ( ⋅ × ×-=-K) 15 . 288 ( K) mol J (8.3145 mol) kg 10 Pa)(2.02 10 01 . 1 ( m kg 23 . 1 3 5 3 ) m 750 )( s m 80 . 9 ( 3 2 × N. 10 42 . 8 3 × = c) Repeating the above calculation with mol kg 10 00 . 4 3-× = M gives a weight of N. 10 80 . 7 3 ×...
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