21. An object appears blue when seen in sunlight. The same object is illuminated by a mixture of equally bright red and green li
1 answer:
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Answer:
2.87 liter.
Explanation:
Given:
Initially volume of balloon = 4.3 liter
Initially temperature of balloon = 350 K
Question asked:
What volume will the gas in the balloon occupy at 250 K ?
Solution:
By using:
Assuming pressure as constant,
V∝ T
Now, let K is the constant.
V = KT
Let initial volume of balloon , = 4.3 liter
1000 liter = 1 meter cube
1 liter =
4.3 liter =
And initial temperature of balloon, = 350 K
Let the final volume of balloon is
And as given, final temperature of balloon, is 250 K
Now,
Dividing equation 1 and 2,
K cancelled by K.
By cross multiplication:
Now, convert it into liter with the help of calculation done above,
Therefore, volume of the gas in the balloon at 250 K will be 2.87 liter.