Download App

PART - 1 CH - 5 Thermodynamics — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryPART - 1 CH - 5 Thermodynamics5 Marks
Question
How is heat change $(\Delta H )$ measured at constant pressure? Explain.
✓

Answer

SELF

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from PART - 1 CH - 5 Thermodynamics→PART - 1 CH - 5 Thermodynamics — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Balance the following equations in basic medium by ion-electron method and oxidation number methods and identify the oxidising agent and the reducing agent.

N2H4(l) + ClO3-(aq) → NO(g) + Cl-(g)

→
Calculate the degree of ionization of 0.05 M acetic acid if its $pK _{ a }$ value is 4.74 . How is the degree of dissociation affected when its solution also contains (a) 0.01 M (b) 0.1 M in HCl ?
→
Give general characters of elements of s, p, d and f-block.
→
S. No
Column I
Column II
1.
Cl2O
+7
2.
Cl2O7
+4
3.
ClO2
+1
4.
Cl2O6
+6
→
Product the sign $\Delta\text{S}$ for the following changes:
  1. Freezing of water.
  2. C(graphite) → C(diamond).
  3. H2(g) at 298 K and 1 bar → H2(g) at 298 K and 10 bar.
  4. H2(g) +I2(g) → 2HI(g).
  5. 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g).
→
While sulphur dioxide and hydrogen peroxide can act as oxidising as well as reducing agents in their reactions, ozone and nitric acid act only as oxidants. Why?
→
Prove that product of $K _{ a }$ of acid and $K _{ b }$ of base is equal to $K_w$.
→
Explain the deactivating and metadirecting effect of nitro group (-NO2) in nitrobenzene.
→
The amount of energy released when one million of atoms of iodine in vapour state are converted to I- ions is 4.9 × 10-13J according to the reaction:
I(g) + e- → I-(g)
Express the electron gain enthalpy of iodine in terms of kJ mol-1 and eV per atom.
→
What are the major differences between metals and non-metals?
→