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A 100ml volume of gas is at a temperature of 100K and 5kPa,
what is the new volume if the pressure is changed to 10kPa?
STEP 1 Identify
variables
STEP 2 Fill in the formula
STEP 3 Cross Multiple
P
V
T2
P
P2
Initial
Final
P.
P
=
V
V
T
TO
STEP 4 Solve for unknown / show work

A 100ml volume of gas is at a temperature of 100K and 5kPa what is the new volume if the pressure is changed to 10kPa STEP 1 Identify variables STEP 2 Fill in t class=

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letshelphomework

Answer:Sol. P base 1 = 10 kpa = 10 × 10^3 pa. P base 2 = 50 × 10^3 pa. v base 1 = 200 cc. v base 2 = 50 cc (i) Work done on the gas = ½ (10+50) x 10^3 x (50-200) x 10 ^-6 = - 4.5 J (ii) dQ = 0 ⇒ 0 = du + dw ⇒ du = – dw = 4.5 J

Explanation:

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