A. 2.536
B. 1.623
C. 4.736
D. 0.394
Correct Answer:
Option A – 2.536
Explanation
For an ideal gas PV = nRT
Amount in moles = n
Volume v = 10.5dm³
Pressure P = 6atm
Temperature T = 30°C + 273 = 303k
R, Gas constant = 0.082 atmdm³k-¹ mol
Recall from ideal gas equation
pv = nRT
n = RV/RT
n = (6×105)/(0.082×303)
n= 2.536mol
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