The nucleus of the isotopes tritium,contains
two neutrons with no protons
one neutron and one proton
two neutrons and one proton
two neutrons, one proton and one electron
Correct answer is C
No explanation has been provided for this answer.
Which of the following is a measure of the average kinetic energy of the molecules of a substance?
volume
mass
pressure
temperature
Correct answer is D
No explanation has been provided for this answer.
400k
480k
550k
600k
Correct answer is D
No explanation has been provided for this answer.
The fraction of crude oil used as jet fuel is
refinery gas
diesel oil
kerosine
gasoline
Correct answer is C
No explanation has been provided for this answer.
At 25oC and 1atm, a gas occupies a volume of 1.50dm3. What volume will it occupy at 100oC and 1atm?
1.88 dm3
6.00 dm3
18.80 dm3
18.80 dm3
60.00dm3
Correct answer is A
\(\frac{v_1}{T_1} = \frac{V_2}{T_2}\)
V2 = \(\frac{V_1 \times T_2}{T_1}\)
= \(\frac{1.50 \times 373}{298}\)
= 1.88 dm3