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the standard enthalpy change for a process is 601 kjmol what is the minimum value for the standard entropy change if
an ac generator with a frequency of 150hz and an rms voltage of 225v is connected in series with a 150kilo ohms
you have discovered a basic amino acid its carboxyl group pka is 192 its amino group pka is 1003 its side chain pka is
mary mass 33 kg likes to slide too on a nearby playground there is a straight metal slide with a vertical drop of 20 m
the vibrational energy levels of an hbr molecule are ek c k frac12 where c 5 middot 10ndash20 joules and k 0 1
a 0400 kg glider is moving to the right on a frictionless shyhorizontal air track with a speed of 0900 ms when it makes
when you burn methane it unites with oxygen to form carbon dioxide and water write an equation to balance the reactants
consider a container with a partition in the middle the container is thermally isolated from the environment initially
the mass of a regulation tennis ball is 580 g although it can vary slightly and tests have shown that the ball is in
if 0260 moles of a monoprotic weak acid ka9010-5 is titrated with naoh what is the ph of the solution at the
a railroad flatcar of weight 7840 n can roll without friction along a straight horizontal track initially a man of
a 300-m long rod is hinged at one end the rod is initially held in the horizon position and then released as the free
at a certain temperature the solubility of strontium arsenate sr3aso42 is 00620 gl what is the ksp of this salt at this
the ksp of mercuryiihydroxide hgoh2 is 36010-26 calculate the solubility of this compound in
a 414-cm diameter disk rotates with a constant angular acceleration of 230 rads2 it starts from rest at t 0 and a line
at 22ccelsius an excess amount of a generic metal hydroxide moh2 is mixed with pure water the resulting equilibrium
a bimetallic strip is made out of two strips of metal bonded together each strip is 200 cm long and 100mm thick 1 strip
two slits separated by a distance of d 0110 mm are located at a distance of d 241 m from a screen the screen is
one point-like charge of 20 nc sits at the center of a thick spherical shell of inner radius 4 cm and the outer radius
a fire hose 4 cm in diameter is capable of spraying water at a velocity of 20 ms for a continuous horizontal flow of
a 115microf capacitor is connected to an ac generator with an rms voltage of 170v and a frequency of 1500hz what is the
a circular wire loop of area 018m squared carries a current of 4 a the coil lies in a horizontal plane with the current
pulsed lasers used for science and medicine produce very brief bursts of electromagnetic energy if the laser light
vinny m 40 kg is at rest on ice which well assume is frictionless holding a gun m1 kg each bullet in the gun has a
a 200 kg mass is located at 400 m 000 m 000 m and a 400 kg mass is located at 000 m 300 m 000 m if this system of