3 years ago

if the pressure of a gas at constant volume is 3.5 atm at 100°c, what will the pressure be if the tempature is changed to 250°c?

1 answer:

6 0

Sorry don't know this one

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trasher [3.6K]

Answer:

just see if i am not wrong

learning balancing in chemistry it take time

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2 years ago

Ksenya-84 [330]

The group of atoms held together by covalent bonds is called a molecule

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3 years ago

Aliun [14]

Answer:

I think no C

if wrong correct me pls

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2 years ago

olganol [36]

It is 20 because then you will put 30 inside of 20milimeeter and put 70 years into the other pint and put it learnt into the cup

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1 year ago

Degger [83]

Answer:

The energy released will be -94.56 kJ or -94.6 kJ.

Explanation:

The molar mass of methane is 16g/mol

The given reaction is:

$CH_{4}(g) + 2O_{2} (g) --> CO_{2} (g)+ 2H_{2}O(l)$

the enthalpy of reaction is given as ΔH = -890.0 kJ

This means that when one mole of methane undergoes combustion it gives this much of energy.

Now as given that the amount of methane combusted = 1.70g

The energy released will be:

$=\frac{energy released by one moleXgiven mass}{molarmass} =\frac{-890X1.7}{16}= -94.56 kJ$

7 0

2 years ago