Physical Chemistry Answers

Calculate the specific heat capacity of titanium if a 45 g sample absorbs 476 J as its temperature changes from 20⁰C to 40.25⁰C. _ J/g ⁰C (2 decimals)

Calculate the amount of heat required to raise the temperature of 225 g of water from 20.0 ⁰C to 100.0 ⁰C. _ Joules

Calculate the mass of gold as -3000J of energy is released as melted gold cools from 1064 ⁰C to room temperature (23⁰C) _ grams ( 2 Decimals) (Csp Au= 0.129)

A 40.0 g sample of ethanol (Csp = 2.46 J/g °C) releases 2952 J as it cools from 50.0 °C. Calculate the change in temperature of the ethanol. _ °C

b)Write the values of all four quantum numbers for 2p electrons.
Discuss their significance in brief.

What is a well-behaved wave function? Illustrate with diagrams.

2moles of PCl5(g) is heated at T°K in a 150 litres vessel in presence of one mole of neon.at equilibrium the mole fraction of cl2 was found to be 1/7,if 4 moles of pcl5 were heated in one litre vessel at T°K in abscence of amy other substance initially (inert gas, pcl3,cl2),then its degree of dissociation will be?

Consider the dissociation of SO3,NH3,PCL5,N2O4,in four different vessels which of the following is correct?
(a) the average molar mass of equilibrium mixture of(SO3+SO2+O2) is 50.
(b) the average molar mass of equilibrium mixture of (NH3+N2+H2) is 19
(c) the average molar mass of equilibrium mixture of (pcl5+pcl3+cl2) is 120
(d) the average molar mass of equilibrium mixture of (N2O4+NO2) is 40.

based on first law of thermodynamics ,q=-w implies

What's the effect of conjugation on IR wave no.?