Physical Chemistry Answers

Assuming no change in temperature and pressure, calculate the volume of O₂ (in liters) required for the complete combustion of 17.6 L of butane (C₄H₁₀):

2C₄H₁₀(g) + 13O₂(g) → 8CO₂(g) + 10H₂O(l)

How the three phases of the substance are represented graphically with the variation P, T, H and S ?

If Kp>1 for a reaction, comment on the sign of standard free energy change of the reaction.

Assume that mitochondria contain 0.47 Molar KCL and 0.015 Molar NaCl. Calculate the grams per liter, of a carbohydrate similar to glucose with a molecular weight 280 amu, that will have the same osmolarity as the mitochondria..

A steel cylinder has a volume of 25.0 L and is filled with N2 gas to a pressure of 200 atm. @ 30.0°C. How many moles of N2 gas does the cylinder contain? 

In the reaction Mg(OH)2 + 2HCl → MgCl2 + 2H2 O, you were given 15

grams of Mg(OH)2 and 25 grams of HCl. Which of the two reactants is the

limiting reagent? How much MgCl2 will be produced in the reaction? (Mg(OH)2

= 58.32 g/mol, HCl = 36.46 g/mol, MgCl2

= 95.32 g/mol)

how to compare the moles of product formed from each reactant

Q1. 3 moles of an ideal gas run through a Camot cycle (A-B-C-D-A) to carry out some work. Data is shown below in the table. Determine the followings. (Given: 7-1.8) (i) Unknown parameters (?) at each state Net work done in Joule with correct sign, Carnot efficiency and actual efficiency State Pressure (Pa) 1300000 Temperature (K) Volume (m) 0.011 0.027 0.018 A B C D

Consider two normalized eigen functions ψ1 and ψ2 , corresponding to the same eigen value. If

∫ψ∗1ψ2dτ=d ,

where d is real

Find a normalized linear combinations of ψ1 and ψ2 that are orthogonal to

(a) ψ1

(b) ψ1+ψ2

Note: The coefficients of the linear combinations need not be real

How much MgCI2 will be produced in the reaction? Mg OH2 = 58.32g/mol , HCI = 36.46/mol , MgCI2 = 95.32/mol