A certain mass of gan as NTP its expendedto3 time volume under adatatic conditions calculated the resultant temperature pressure. R=1.4
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188.90 K WILLL be the resultant temperature .
Explanation:
for adiabatic expansion
TVⁿ⁻¹ = CONSTANT .............eq 1
where n is specific heat ratio, sometimes denoted by gaama
here n= 1.4 (GIVEN )
now
T 1 = 20 °c ( as ntp is given )
= 293.15 K
V2/V1 = 3
using eq 1 for condition 1 and 2
T2/T1 = (V1/V2)ⁿ⁻¹
= (1/3)ⁿ⁻¹ n = 1.4 GIVEN
= (1/3)^0.4
= 0.644
T2 = 0.644 * 293.15
= 188.904 K
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