Physical Chemistry Answers

Question 10 : The accepted way of writing fifty kilogram is
Unsure
50kg
50 kg
None of the Options
Question 11 : g/mol is a
Combination
Derived unit
Unsure
Basic unit
Question 12 : The unit for electric current is
joule
ampere
meter
candela
Question 13 : Find the mass concentration of NaCl solution having 25 g dissolved in 150 g of distilled water
15 g/dm^3
2.5 g/dm^3
0.167 g/dm^3
25 g/dm^3
Question 14 : SI stands for
Systemme Iinternationale
International System
System International
Unsure
Question 15 : Temperature is a unit of measuring heat
true
false
Unsure
None of the Options

Units are obtained from the mathematical combination of two or more basic units
Physical quantity
Derived units
SI units
Basic units
Question 17 : Candela is the SI unit for
Light intensity
Concentration
Temperature
Current
Question 18 : if a mass of 5 g is given its equivalent in kg wi be
0.05 kg
5 kg
0.005 kg
0.5 kg
Question 19 : SI units were adopted in order to
None of the Options
make all measurements equal
adopt common units of measurement
change units
Question 20 : Given the expression for the general gas PV = nRTequation, find R
PV/nT
PV/RT
RT/PV
nT/RT

Question 6 : g/mol is a
Basic unit
Derived unit
Combination
Unsure
Question 7 : �?��?��?��?��?�. Units are obtained from the mathematical combination of two or more basic units
SI units
Derived units
Basic units
Physical quantity
Question 8 : if a mass of 5 g is given its equivalent in kg wi be
0.05 kg
5 kg
0.005 kg
0.5 kg
Question 9 : Micro unit is equivalent to
10^-3
10^-4
110^-6
10^-2
Question 10 : The equivaent of 25^oC in Kelvin scale is
278K
258K
238K
298K

Question 1 : SI units were adopted in order to
change units
adopt common units of measurement
make all measurements equal
None of the Options
Question 2 : Given the expression for the general gas PV = nRTequation, find R
RT/PV
PV/nT
nT/RT
PV/RT
Question 3 : Convert 0.06 meter to millimeter
60 mm
6 mm
600 mm
6000 mm
Question 4 : Temperature is a unit of measuring heat
false
true
None of the Options
Unsure
Question 5 : Physical quantities from which all other physical quantities can be derived are known as
Derived units
SI units
Derived quantities
Basic units

How would the freezing point depression of a 0.05m cacl2 solution compare with that of a nacl solution?

Candela is the si unit for

Find the pH value.
[H30+]= 2.6432 moldm-3

When 10cm3 of 10 molar potassium hydroxide at 35 degree celsius was added to 10cm3 of 10 molar hydrochloric acid solution at 35 degree celsius,the temperature of the mixture rose to 42 degree celsius.calculate the standard heat of neutralisation.given that the specific heat capacity of the solution is 4.2 joules per gramme per degree celsius

A 2500 m^3 confined gas is at a temperature of 35℃ and pressure of 75.33 cm Hg. If the pressure is increased to 76.3 cm Hg with a final temperature of 78℃, what is the final volume?

A container with volume 71.9 ml contains water vapor at a pressure of 10.4 atm and a temperature of 465oC. How many grams of the gas are in the container?