Explain water-soluble ionic substances react

Reference no: EM13285109

(a) In a chemical reaction two water-soluble ionic substances react to form an insoluble solid precipitate in a metathesis reaction. Would you expect DS to be positive, negative, or close to zero for this reaction?

Delta S for this reaction should (postive, negative, or zero)?

(b) In which of the processes described below should the entropy increase? Choose all of the correct possibilities.

-ice cubes melting at -5 oC and 1 atm pressure

-perfume from a bottle evaporates and spreads throughout a room

-formation of CH4(g) and O2(g) molecules from CO2(g) and H2O(l) at room temperature and 1 atm pressure

-the reaction of sodium metal with chlorine gas to form solid sodium chloride

-some dry ice left on a tabletop disappearing via sublimation

Reference no: EM13285109

Questions Cloud

What is the vertical velocity of the ball : football player kicks a ball with a speed of 22.1 m/s at an angle of 46° above the horizontal from a distance of 38 m from the goal line. What is the vertical velocity of the ball at the time it reaches the goalpost

Explain what mass of ammonium chloride should be : What mass of ammonium chloride should be added to 2.65 of a 0.145 in order to obtain a buffer with a of 9.65

Find the electric energy density between the plates : Find the electric energy density between the plates of a 225-uF parallel-plate capacitor. The potential difference between the plates is 320V

Find the value of the capacitor that needs to be connected : a 10kW 220 V single phase ac motor is operating at .7 lagging power factor. Find the value of the capacitor that needs to be connected in parallel with the motor, if the power factor is to be improved to .95 lagging

Explain water-soluble ionic substances react : In a chemical reaction two water-soluble ionic substances react to form an insoluble solid precipitate in a metathesis reaction. Would you expect DS to be positive, negative, or close to zero for this reaction

Determine how tall is the antenna : makes an angle of 35.2o with the horizontal. In part b the person is looking at the top of the antenna, determine How tall is the antenna

A submarine submerges by admitting seawater : A submarine submerges by admitting seawater (density = 1030kg/m^3) into its balast tanks. Consider a ballast tank with its outlet at the bottom. If the tank is filled to a depth of 0.61 meters and the air pressure in the tank is 2.76 atm, what is t..

Determine the current i flowing through a resistor : Determine the current i(t) flowing through a resistor if the cumulative charge has flowed through it up to time (t) is given by a) q(t)=3.6t mC b) q(t)=5sin(377t) uC c) q(t)=0.3[1-e^-0.4t] pC d) q(t)=0.2t(sin(120pi(t))) nC

What is the peaks elevation : When driving west toward the Rocky Mountains, you see a peak 3.7 above the horizon. What is the peak's elevation

User Account

All Pages