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a closed system consists of 4 objects initially object a has 137 j of energy object b has 158 j of energy object c has
10-at 900k the following reaction has kp 0345 in an equilibrium mixture the partial pressures of so2 and o2 are 0210
pentanol c5h11oh undergoes complete combustion to form co2g and h2oheart the enthalpy of combustion of 3-pentanol and
a closed system is observed to have 17 objects in it initially the total energy of the system is 4714 j after 17 h have
so2 and o2 react together to form so3 the resulting reaction mixture is an equilibrium involving all three compounds
a rescue helicopter lifts a 60 kg person straight up by means of a cable the person has an upward acceleration of 070
what will be the final temperature of a 35 kg block of aluminium initial temperature 22oc after the addition of 29 kj
a long solenoid has 140 turnscm and carries current i an electron moves within the solenoid in a circle of radius 260
elemental analysis of a compound containing h b and o gave 13 h and 275 b the molecular weight of the compound is 1573
a power supply has an open-circuit voltage of 350 v and an internal resistance of 200 o it is used to charge two
how many moles of oxygen were used in the combustion of solid naphthalene c 10 h 8 if 51 kj of energy were released to
how many moles of nonane c9h20 and oxygen are required to produce 135 moles of carbon dioxide and 15 moles of water by
when the magnetic flux through a single loop of wire increases by 30 tm2 an average current of 40 a is induced in the
write a balanced chemical equation for the reaction of hno3 with s to form h2so4 h2o and no2 how many moles of hno3 and
a large flat plate with uniform charge density lies on the xy plane what is the potential difference between the
3- complete combustion of 3 moles of cycloheptatriene c7h8 would require how many moles of oxygen and produce how many
a satellite has a mass of 6000 kg and is in a circular orbit 410 x 105 m above the surface of a planet the period of
for a particular redox reaction cr is oxidized to cro42- and fe3 is reduced to fe2 complete and balance the equation
a projectile fired from a gun has initial horizontal and vertical components of velocity equal to 30 ms and 40 ms
recent studies have raised concern about heading in youth soccer ie hitting the ball with the head a soccer player
write a balanced chemical equation for the reaction of c with so2 to form cs2 and co how many moles of so2 and co are
which of the following solutions has a concentration of 010 m a 5188 mg potassium iodide dissolved in 3125 ml water b
a parallel-plate capacitor has plates separated by 072 mmif the electric field between the plates has a magnitude of
an electron traveling at 86 ms enters a 98 t magnetic field the angle between the velocity and the field is 49o find