A tank with a volume of 0.15 m3 contains 25.0°C helium gas at a pressure of 100 atm. How many balloons can be blown up if each filled balloon is a sphere 31.0 cm in diameter at 25.0°C and absolute pressure of 1.20 atm? Assume all the helium is transferred to the balloons
a. 401 balloons
b. 802 balloons
c. 178 balloons
d. 1 002 balloons
e. 126 balloons
b
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A measure of the amount of light a star produces is referred to as__________
A) inherited glare B) intrinsic brightness C) tidal lighting D) differential illumination
Nylon derives some of its strength from dipole bonds, but this also leads to it _________polar molecules such as water.
Fill in the blank(s) with the appropriate word(s).
Why must the Sun's rate of fusion gradually rise over billions of years?
A) The Sun becomes less efficient and must increase the rate of fusion to produce the same amount of energy. B) Fusion reactions decrease the overall number of particles in the core, causing the core to shrink, converting gravitational potential energy into thermal energy, and increasing the rate of fusion. C) The radiation produced by fusion reactions that is trapped in the core gradually raises the temperature, increasing the rate of fusion. D) The Sun gets heavier as it gets older, and the stronger inward pull of gravity increases the fusion rate. E) The rate of fusion is not rising; it is actually decreasing over time.
Distinguish between conduction and convection. Give examples of each
What will be an ideal response?