Question

what did the author place the order for) story name is quality
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Answer 1

Explanation:

Gud afternoon

\LARGE{ \underline{\underline{ \sf{Required \: answer:}}}}

Requiredanswer:

GiveN:

Initial gas at press. = 1080 mm of Hg

Volume decreased to 40%

[ At a constant temperature ]

To FinD:

New pressure of the gas....?

Step-by-Step Explanation:

Let the initial volume be V

Then final volume will be 40% of V = 0.4 V

Now, as the temperature is constant here. We can use Boyle' law which says about the relationship between the pressure and volume of a gas.

Boyle's law:

\because \boxed{ \rm{P_1V_1 = P_2V_2}}∵

P

1

V

1

=P

2

V

2

Here,

P1 = Initial pres. of the gas = 1080 mm of Hg

V1 = Initial vol. of the gas = V

V2 = Final vol. of the gas = 0.4 V

Plugging the values in the formula,

⇒ 1080 × V = P2 × 0.4 V

⇒ 1080 / P2 = 0.4 V/V

⇒ 1080 / P2 = 0.4

⇒ P2 = 1080 / 0.4

⇒ P2 = 10800 / 4

⇒ P2 = 2700 mm of Hg

Thus, the final pres. of the gas will be 2700 mm of Hg.