Is `C0_2` solid, liquid or gas at (a) `-70^@C` under 1 atm, (b)` -60 ^@C` under 10 atm, (c) `15 ^@C` under 56 atm?

What is the density of SO_2 gas at 27^@C at 2 atmospheric pressure?(R = 0.08219 atm K^(-1) mol^(-1)

200 gram of a solid ball at 20^@C is dropped in an equal amount of water at 80^@C . The resulting temperature is 60^@C . This means that specific heat of solid is-

Answer the following questions based on the P-T phase diagram of CO_2 : (a) CO_2 at 1 atm pressure and temperature - 60 ^@C is compressed isothermally. Does it go through a liquid phase?

C Cl_4 does not under go hydrolysis why?

If one of the zeroes of the quadratic polynomial x^2+bx+c is negative of the other,then a) b=0 and c is negative b) b=0 and c is positive c) b!=0 and c is positive d) b!=0 and c is negative

Solve the triangle ABC if a=sqrt3+1 ,b=2, C=60^@

Fill in the blanks at (A), (B), (C), (D), (E) and (F), and complete the C_4 pathway/Hatch Slack pathway. Atm CO2 enters (A) CO_2 is accepted by (B) and forms four carbon acid compound (C) C_4 acid enters into (D) and splits into CO_2 and (E). CO_2 enters Calvin cycle and 3C acid (F) is formed.

Henry's law constant for CO_2 in water is 1.67xx10^8 Pa at 298 K. Calculate the quantity of CO_2 in 500mL of soda water when packed under 2.5 atm CO_2 pressue at 298K.

In a triangle ABC, prove that (b^2 - c^2) cot A + (c^2 -a^2) cot B+ (a^2-b^2) cot C = 0