As a) The area of a rectangle is 15 cm. If its length is 5 cm, find
breadth (Hint length breadth = Area of rectangle)
b) The area of a rectangle is 28 cm? If its breadth is 4 cm, find its ler
c) If the perimeter of a square is 24 cm, find the length of its
d) The perimeter of a rectangle is 14 cm. If its length is 4 cm, fi
breadth. (Hint: 2(length + breadth) = perimeter of rectangle)
Algebraic !
(Hint: 4 x length of a side = perimeter of square)
e) The volume of the adjoining cuboid is
42 cm. If its length and breadth are 7​

What is the density of the black hole

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

Problem #3 (ch. 1, problem 15)the ideal gas law provides one way to estimate the pressure exerted by a gas on a container. the law isí‘ťí‘ť=푛푛푛푛푛푛푉푉more accurate estimates can be made with the van der waals equationí‘ťí‘ť=푛푛푛푛푛푛푉푉â’푛푛푟푟â’푞푞푛푛2푉푉2where the term nb is a correction for the volume of the molecules and the term an2/v2is a correction for molecular attractions. the values of a and b depend on the type of gas. the gas constant is r, the absolutetemperature is t, the gas volume is v, and the number of moles of gas molecules is indicated by n. if n = 1 mol of an ideal gas were confined to a volume of v = 22.41 l at a temperature of 0â°c (273.2k), it would exert a pressure of 1 atm. in these units, r = 0.0826.for chlorine gas (cl2), a = 6.49 and b = 0.0562. compare the pressure estimates given by the ideal gas law and the van der waals equation for 1 mol of cl2 in 22.41 l at 273.2 k. what is the main cause of the difference in the two pressure estimates, the molecular volume or the molecular attractions?