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a assume that air pressure is 100 atm and the air temperature is 193o c if the abolute zero apparatus is open to the
calculate the mass of i2 produced at the anode if a current of 285 a is passed through a solution of ki for 56
the coefficient of performance of a refrigerator is 470 the compressor uses 200j of energy per cyclepart a how much
a carnot refrigerator operating between -100 cand 100 c extracts heat from the cold reservoir at the rate 100js what
identify r and r in equation 1 when the ester aspirin is made from salicylic acid and acetic acid calculate the
a 2kg package is released on a 531 degree incline 4m from a long spring with force constant 120 nm that is attached to
i desperately need help with this last question i have if somebody could please solve it and show the steps ill be
predict qualitatively which of the following aqueous solutions a b c or d each containing 20 moles of the given
a block of unknown mass is attached to a spring of spring constant 61 nm and undergoes simple harmonic motion with an
a uniform 245- kg spinning disk with a radius of 0323 m is brought to rest by a brake-pad pressed against the side
zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation zns 2hclaq
a system does 430 104 j of work and 700 104 j of heat flows into the system during the process find the change in the
a 50- kg block oscillates with an amplitude of 0090 m on a light spring of constant k 280 nmwhat is the maximum value
predict the sign of delta ssystem for the following processes a molten fe solidifies b licls is formed formed from lis
a gas molecule having a speed of 322 ms collides elastically with another molecule of the same mass which is initially
a bicycle is turned upside down while its owner repairs a flat tire a friend spins the other wheel of radius 04 m and
explain in terms of their structures why each of the following pairs of substances have very different chemical and
a person is trying to practice with their yo-yo they can throw the yo-yo with initial angular velocity winitial 500
a girl jumps on bike and exerts torque of 250 n-m perpendicular to the pedal moment of inertia of bike wheel is i
does the entropy of a system change when a a solid melts b a gas liquefies c a solid
a marble slide towards a 2nd marble at rest along the surface of frictionless table-top they behave as point masses and
an electromagnetic wave in vacuum has an electric field amplitude of 220 vm calculate the amplitude of the
calculate the hydrogen ion concentration in a solution of fruit juice having a ph of 425 a10 times 10-14 md25 times
measurements of the radioactivity of a certain isotope tell you that the decay rate decreases from 8305decays per
calculate the h ion concentration in a 88 times 10-4 m caoh2 solution a88 times 10-4 md11 times 10-11 m b18 times 10-3